Re: Online base backup from the hot-standby

> I don't much like that approach. The standby would need to be able to
> write the backup history file to the archive at the end of backup, and
> we'd have to reintroduce the code to fetch it from archive and, when
> streaming, from the master. At the moment, the archiver doesn't even run
> in the standby.

Please teach the reason for "The standby would need to be able to write 
the backup history file to the archive at the end of backup" .
(I'd like to know why "to only pg_xlog" is wrong .)

Because there is the opinion of "Cascade replication" , I don't want to 
realize the function with the method which the standby requests to execute 
it on the primary server .

(The opinion of "Cascade replication"：       http://archives.postgresql.org/pgsql-hackers/2011-05/msg01150.php)

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Jun Ishizuka
NTT Software Corporation
TEL：045-317-7018
E-Mail: ishizuka.jun@po.ntts.co.jp
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